ATE18660T1 - HOOK WITH SAFETY DEVICE. - Google Patents

HOOK WITH SAFETY DEVICE.

Info

Publication number
ATE18660T1
ATE18660T1 AT82420158T AT82420158T ATE18660T1 AT E18660 T1 ATE18660 T1 AT E18660T1 AT 82420158 T AT82420158 T AT 82420158T AT 82420158 T AT82420158 T AT 82420158T AT E18660 T1 ATE18660 T1 AT E18660T1
Authority
AT
Austria
Prior art keywords
catch
casing
lever
hook
stop
Prior art date
Application number
AT82420158T
Other languages
German (de)
Inventor
Paul Longuet
Original Assignee
Becque Forges
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Becque Forges filed Critical Becque Forges
Application granted granted Critical
Publication of ATE18660T1 publication Critical patent/ATE18660T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Emergency Lowering Means (AREA)
  • Supports Or Holders For Household Use (AREA)

Abstract

1. Lifting hook with safety device, including a hook casing (1) the open buckle of which delimits an inside hooking space (E) and an end of which forms a yoke (1a) for the linking of a closing catch (2) designed for co-operating with the fastening organ of a lifting apparatus or of a hanging organ, the catch (2) supporting in a hinged manner a safety lever (4) elastically and pivotally urged, housed and retracted within the yoke (1a) of the hook casing in the closing position of the catch, the interlocking end (4g) of the lever co-operating with a stop in the hook casing, said lifting hook being characterized in that the interlocking end (4g) of the swivelling safety lever (4) is shaped for abutment against the stop (1e or 8) of the casing, formed on a side of the hooking inside space (E) and adjacent to this space as much as possible, the interlocking lever (4) being of the type in which the fulcrum or pivotal axis (5), placed on a projection (2e) of the catch, is located between the resisting force applied on to the interlocking end (4g) and the motive force applied by finger thrust onto the opposed end (4b) of the lever, externally to the hook casing, the elastic means (6, 7 or 9) having the purpose to bring back permanently the interlocking end of the lever in the locking position against the stop of the casing ; the contacting point of the interlocking end (4g) with the stop (1e) or (8) of the casing being situated at a distance (x) slightly ahead (on the side of the general axis) of the vertical axis passing through the pivotal axis (5) of the vertical while there is provided a comparatively large interval (y) between the linking pin (3) of the catch and the said contacting point, the relative disposition of the three aforesaid points, namely : the pivotal axis (5) of the lever, the linking pin (3) of the catch and the contacting point of the interlocking end (4g) with the stop (1e or 8) permitting to ensure the locking of the catch on the casing of the hook, even when an excessive stress is exerted from the inside space of the catch, while said catch can be released and opened by a voluntary pressure of the finger, without excessive stress on the lever which is free to escape from the stop of the casing.
AT82420158T 1981-11-30 1982-11-24 HOOK WITH SAFETY DEVICE. ATE18660T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8122694A FR2517289B1 (en) 1981-11-30 1981-11-30 LIFTING HOOK WITH SECURITY DEVICE
EP82420158A EP0080955B1 (en) 1981-11-30 1982-11-24 Lifting hook with safety device

Publications (1)

Publication Number Publication Date
ATE18660T1 true ATE18660T1 (en) 1986-04-15

Family

ID=9264666

Family Applications (1)

Application Number Title Priority Date Filing Date
AT82420158T ATE18660T1 (en) 1981-11-30 1982-11-24 HOOK WITH SAFETY DEVICE.

Country Status (4)

Country Link
EP (1) EP0080955B1 (en)
AT (1) ATE18660T1 (en)
DE (2) DE3270029D1 (en)
FR (1) FR2517289B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9003268D0 (en) * 1990-10-12 1990-10-12 Gunnebo Lifting Ab LIFTING HOOK
FR2744345B1 (en) * 1996-02-02 1998-06-05 Cauda Guillaume Jean Louis SECURITY SYSTEM FOR CHAINS, NECKLACES, BRACELETS
US20020152593A1 (en) * 2001-04-20 2002-10-24 Steven Hong Coupling self-locking hook
TWI482732B (en) * 2012-10-03 2015-05-01 Yoke Ind Corp Lock the hook
DE102019103517B4 (en) * 2019-02-12 2021-04-22 Pewag Austria Gmbh Safety hook

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB389954A (en) * 1932-01-29 1933-03-30 Joseph Fraser An improved safety cargo hook
US2197997A (en) * 1938-12-07 1940-04-23 Harold D Dee Self-locking hook
GB1186765A (en) * 1966-07-05 1970-04-02 Stal & Maskin Ab A Lifting and Lowering Hook
FR2108918A6 (en) * 1970-10-15 1972-05-26 Stas
US3741600A (en) * 1971-07-30 1973-06-26 American Hoist & Derrick Co Safety hook
GB1430543A (en) * 1973-06-01 1976-03-31 Bluten Kanthal Ab Safety hooks
FR2327186A1 (en) * 1974-01-18 1977-05-06 Forges Du Creux Du Sable Lifting hook locking device - has hook with yoke in which closing finger with lifting eye pivots
US4050730A (en) * 1976-05-19 1977-09-27 Akio Tada Hook latching device
FR2425400A1 (en) * 1978-05-09 1979-12-07 Beon Roger Le Safety catch for crane hook - has sprung pawl engaging notch in fork end to hold hook in closed or open position as required
FR2491901A3 (en) * 1980-10-10 1982-04-16 Charlet Sa Safety lifting hook for use with block and tackle - has pivoted closing link pivoted to part of main hooking body to lock it shut

Also Published As

Publication number Publication date
DE3270029D1 (en) 1986-04-24
EP0080955A1 (en) 1983-06-08
FR2517289B1 (en) 1985-07-12
FR2517289A1 (en) 1983-06-03
EP0080955B1 (en) 1986-03-19
DE80955T1 (en) 1984-04-12

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties